GB Whatsapp is the best app when it comes to security & customisation. You can customise the call & chat screen.
In this article we will take you through call screen customisation. You can refer Dynamic theme article for chat screen customisation.
Once you open the GBWhatsapp, there are two ways to customise call screen.
I. Go to Chat/ Groups tab, you will see a ‘+’ sign. Click on ‘+’ >> Phone symbol.
II. Go to GB setting >> Color Phone
You can choose the theme you like!